| Abbreviation | Definition |
|---|---|
| LRLA | Little Rock Lake Association |
| LRPA | Louisiana River Pilots Association |
| LRRA | Lakes Region Repeater Association |
| LRSA | La Raza Staff Association |
| LRSA | Lakewood Ranch Swim Association |
| LRSA | Lehigh River Stocking Association |
| LRSA | Local Registration Services Association |
| LRSA | Los Rios Supervisors Association |
| LRTA | Light Rail Transit Association |
| LSA | Law Students Association |
| LSA | LEAD Students Association |
| LSA | Local Search Association |
| LSA | Louisiana Shooting Association |
| LSEA | Lake Stevens Education Association |
| LSFA | Louisiana State Florists Association |
| LSFA | Loveland Symmes Firefighter Association |
| LSGA | Laminators Safety Glass Association |
| LSGA | Leinster Square Gardens Association |
| LSLA | Lake States Lumber Association |
| LSLA | Lethbridge Sustainable Living Association |